SDS hammer drill bits and percussion drill bits with PGM certification mark are suitable for the safe installation of anchor fixings in concrete and masonry. Their tolerances are tailored to metal anchors, bonded anchors and plastic anchors with European Technical Approval (ETA). This is not the case for drill bits without PGM mark. Their use can influence the safety and reliability of anchor fixings. If such drill bits are used, the liability risk for unsafe anchor fixings stays with the installer. Also distributors take a higher liability risk, when they sell drill bits without PGM certification mark. Both – end users and distributors are on the safe side with PGM marked drill bits.